diff --git a/hannah.cabal b/hannah.cabal
index 82ed425..b268904 100644
--- a/hannah.cabal
+++ b/hannah.cabal
@@ -21,7 +21,7 @@ executable hannah
   other-modules:       Automaton
                      , Config
   -- other-extensions:    
-  build-depends:       base >=4.9 && <4.10
+  build-depends:       base >=4.9 && <4.12
                      , bytestring
                      , containers
                      , mtl